共 15 条
- [1] Alexandroff P, 1965, TOPOLOGIE
- [2] CALUGAREANU, 1959, REVUE MATHEMATIQUES, V4, P5
- [3] CALUGAREANU, 1961, CZECHOSLOVAK MATHEMA, V11, P588
- [4] Chern S.S, 1955, ENSEIGN MATH, V40, P26
- [5] Chern Shiing-Shen, 1951, TOPICS DIFFERENTIAL
- [6] ON THE CURVATURA INTEGRA IN A RIEMANNIAN MANIFOLD [J]. ANNALS OF MATHEMATICS, 1945, 46 (04) : 674 - 684
- [7] Guggenheimer HW, 1963, DIFFERENTIAL GEOMETR
- [8] ON THE IMMERSION OF MANIFOLDS IN EUCLIDEAN SPACE [J]. ANNALS OF MATHEMATICS, 1958, 68 (03) : 562 - 583
- [9] LASHOF RK, 1959, J MATH MECH, V8, P143
- [10] LITTLE J, 1968, THESIS U MINNESOTA